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Re: 1999 Fld70 Gear change questions for under power
Posted to HD/Fleet Forum on 4/24/2024 3 Replies

I am not sure. When i had these problems at Mack there generally was not much that can be done. You need power to climb grades. Did this engine work better when it was new. Has the usage changed from original.

The allison performance program ( isaan ) is a g... Login to read more.

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